Tamper



C. JACKSON.

TAMPER. APPLICATION FILED MAX/25, 1312-.

Patented Jam. 27', 1930.

2 SHEETS-SHEET I- I wamo $22 TAMPER.

To all whom it may concern:

Be it known that I, CORWILL' JACKSON, a citizen of the United States, residing at the city and county of Kalamazoo, State of Michigan, have invented certain new and useful Improvements in Tampers, of which the following is a specification.

This invention relates to improvements 1n tampers.

My improvements are especially designed by me for embodiment in tie tampers and the embodiment illustrated is especially adapted for Jthat purpose. My improvements are, however, of advantage and readily adapted for use in other relations.

The objects of my invention are, I First, to provide an improved tamper for use in tamping ties and thelike which is highly efii'cient and tamps the material upwardly against the under si de'of the tie as well as downwardly," providing a bed there for which is not likely to settle or have por tionsin which the material is easily disturbed by streams of water or the like.

Second, to provide an improved tamper which is of very large capacity in that it enables the performance of a large. amount of work with comparatively little effort on the part of the user.

Third, to provide an improved tamper which is very durable in use. j Fourth, to provide an improved motor driven tamper in which the parts are simple in structure and arrangement and not likely to become broken or get out of repair in use. Further objects, and objects relating to structural details, will definitely appear from the detailed description to follow.

I accomplish the objects. of my invention y'the devices and means described in the following specification. The invention is clearly defined and pointed out in the claims; v

A structure which isa preferred embodiment of my invention is clearly illustrated in the accompanying drawin forming a part of thisv specification, in w ich:

Figure I is a sideelevation of a tamper embodying the features of" my inventlon' shown in operative or tamping position relative to a road bed and tie laid thereon. Fig. II is an enlarged sidelelevation. Fig. III is a detail inverted view. Fig. IV is an enlarged detail section on silient Specification of Letters Patent. Patented J an. 27, 1920- Application filed May 23, 1919. Serial No. 299,262.

a line corresponding to line H of Figs.

II and V showing details of the handle connections and vibrating means.

Fig. V is an enlarged detail longitudinal vibrating means.

F 1g. VI is a conventional illustration of a rail and its supporting tie shown con; ventionally with the end of the tamping bar of my improved machine in operative relation thereto, its stroke being. indicated by dotted lines in Fig. VI. 1 A

Fig. VII is a detail view partially in section on line 77 of Fig. II showing details of the handle connections.

In the drawing similar reference characters refer to similar parts throughout the several views, and the sectional views are taken looking in the direction of the little arrows at the ends of the section lines.

provided with ears 9. connected to the clampdisposed on opposite sides of the- STATESIPATENT v i v Referring to the drawing, I provide a motor shown conventionally at 1' having a mg cross piece 10 at the upper end of'motor by means of the bolts 11. On the lower end of casing I rigidly mount the tamping bar 12, the bar in thestructure illustrated being1 secured by-the U clamping bolts 13 whic engage lugs 14'on opposite sides of the casingrigidly supporting the tamping blarfia right angles 'or'transversely of the The yoke-like handle 15 is provided-with hand pieces 16 and 17. The handle has reanear '22 disposed centrally on the upper recess like pockets 25 located near the bottom of the casing. The'cover plates 26 are mounted on the pins. The pin 20 is dieor spring members 18 and19 terminating in coils secured to the pins 20 and- 21 respectivelyr The pin 21 is carried by v end of casing. The pin 20 is carried by a u posed centrallyat the upper end of casing while'the pins 21 are disposed in alinement therewith on the sides of the casing.

Each arm of the handle is provided with.

spring members secured to the pins, so that the handle tends to restrict vibration transversely ofthe casing and permits it to v1- brate more freely in the longitudinal direction of the tamping bar, the result being the tie and the road bed compacted downwardly as Well. I

My improved tamper is very simple and economical in structure, enables the per-1 formance of a large amount of work with little eflort on the part of the operator and in a superior manner.

I have illustrated and described'my improvements in an embodiment which I believe very satisfactory. I have not attempted to illustrate or describe various modifications and adaptations which I contemplate as I believe the disclosure made will enable those skilled in the art to which my invention relates to embody and adapt the same as may be'desired. 1 Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. In a tamper, the combination of a shaft b having an unbalancing weight mounted at its lower end, a driving motor for said shaft, a casing provided with bearings for said shaft disposed at the lowerend of the casing on opposite sides of said weight, a tamping bar clamped to the lower end of said casing transversely of said shaft, a yoke-like handle each arm of which comprises spaced spring members terminating in spring coils,

and a pin disposed-centrally at the upper end of said casing and laterally disposed pins on the sides at the lowerend'thereof to which the coils of said handle spring members are secured, said pins being resiliently mounted on said casing, all coacting for the purpose specified. a

2. .In a tamper, the combination of a shaft having an unbalancing weight mounted at its lower end, a driving motor for said shaft, a casing provided with bearings for said shaft disposed at the lower end of the casing on opposite sides of said weight, a tamping v bar clamped to the lower end of sa1d casing transversely of ,said'shaft, a yoke-like han- 'dle. each arm'l'of which comprises spaced -spring members terminating in sprmgfcoils,

.- and, a pin disposed centrally at the-:upper Tend of said casing and laterally disposed pins on the sides at thelower end thereof members are secured, all coactingfor the purpose specified.

'3. In a tamper, the combination :of a I shaft having an unbalancing weight mounted at its lower end, a driving motor for said shaft, a casing provided with bearings for said shaft dlsposed at the lower end of the casing, a tamping bar rigidly secured to the lower end of said casing transversely of said shaft, and a yoke-likehandle each arm of which comprises spaced spring members terminating in spring coils secured to said casing at the ends thereof.

4. In a tamper, the combination of a shaft having an unbalancing weight mounted at its lower end, a driving motor for said shaft, a casing provided with bearings for said shaft disposed at the lower end of the casing, a tamping bar secured to I the lower end of said casing transversely of said shaft, a yoke-like handle provided with shaft provided with a vibrating member, a

driving motor, a casing provided with bearings for said shaft, said vibrating member being disposed at the lower end of, said casing, a tamping bar rigidly mounted onthe lower end of said casing transversely of said shaft, and a handle comprising spring members connected at the ends of said casing to permit it to vibrate most freely in a direction longitudinally of the tamping 6. In a tamper, the combination with a shaft provided with a vibrating member, a driving motor, a casing provided with bearings for said shaft, a tamping bar mounted on said casing transversely of said shaft,

and a handle resiliently connected to said" mounted thereon, a driving motor therefor,

. a casing, a tamping bar rigidly mounted on sa1d casing, and a handle having a resilient connection to said casing, so that the force ofthe blows delivered at the end of said tamping bar. is mainly in a vertical and longitudinal direction. 7

9 he tamper, the combination of a shaft having an unbalancing member mounted thereon, a driving motor therefor,

a casing, a tamping bar rigidly mounted on said casing. a

10. In a tamper, the combination of a motor, a casing, 'a vibrating means for said casing, a tamping bar rigidly mounted on said casing, and a, handle having a resilient connection to said casing.

11. In a tamper, the combination of a motor, a casing, a vibrating means for said casing and a tamping bar rigidly mounted on said casing.

12. In a tamper, the combination of a vibrating means, a tamping bar rigidly con- 10 nected to said vibrating means, and a handle having a resilient connection to said vibrating means.

In witness whereof, I have hereunto set my hand and seal in the presence of two witnesses.

CORWILL JACKSON.

Witnesses LUELLA Gr. GREENFIELD, MARGARET L. GLASGOW. 

